Nullable or Optional? Or something else?

[Simen Kjaeraas]

Danny Wilson <bluezenix at gmail.com> wrote:

> Op Wed, 02 Sep 2009 21:39:28 +0200 schreef Andrei Alexandrescu  
> <SeeWebsiteForEmail at erdani.org>:
>
>> I plan to add a Nullable struct to Phobos (akin to C#'s Nullable,  
>> Boost's Optional).
>>
>> Apparently a good design is to define Optional!T with a minimum of  
>> member functions (ideally none) and have it use the "alias this"  
>> feature to masquerade as a T. That way Optional!T looks and feels much  
>> like a T, except that it supports a function
>>
>> bool isNull(T)(Optional!T value);
>>
>> Am I on the right track? If so, what is the name you'd prefer for this  
>> artifact?
>>
>>
>> Andrei
>
>
> How about:  Maybe!T
>
>
> Got that from Haskell :-)

I also feel the bikeshed should be colored 'Maybe'.

-- 
   Simen